William h



y 1931. w. H. ZORN 1,806,658

PUMP

Filed June 25, 1930 2 Sheets-Sheet l May 26, 1931. w ZORN 1,806,658

PUMP

Filed June 23, 1930 2 Sheets-Sheet 2 mil 4/ as \35 g 36 y 42 -33 40& p39 45 64 l 44 29 27 76 25 23 7/ /9 6/ I /7 h 6 i Patented May 26, 1931 UNITED STA WILLIAM H; ZORN, F HARRISBURG, NEBRASKA PUMP Application filed June 23,

This invention aims to provide a pumping mechanism which will operate through the instrumentality of weights, the invention being simple and efiicient, and spring means being provided for offsetting the weight of the pump rod, thereby to facil1- tate the operation of the walking beam through. the instrumentality of the gear train which actuates it.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

With the above and other objects in View, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes may be made in the precise embodiment of the invention herein disclosed, within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings:

Figure 1 shows'in side elevation, a device constructed in accordance with the invention;

Figure 2 is a top plan; 7

Figure 3 is a longitudinal section;

Figure 4 is an elevation of the crank disc;

Figure 5 is an elevationwherein the crank disc is viewed at right angles to the showing of Figure 4. r I

' In carrying out the invention, there is provided a frame 1 which may be'of any desired size and shape, depending upon the taste of the user. The frame 1 may be of rectangular form, and may be provided at its ends with upwardly projecting standards 2 having parallel ends 3, between which are held bearing blocks 4 wherein are journaled the stems 5 of forks 6 carrying shafts 7 on which pulleys 8 are mounted to turn. Fleirible elements 9 are engaged over thepulleys 8. On the outer ends of the flexible elements 9, weights 10 are secured. The flexible elements 9 are wound, respectively about drums 11 and 12. The drum 11 is secured to a shaft 14 journaled in the frame 1, and the drum 12 is secured to a shaft 16 1930. serial no. 463,314.

journaled in the frame andlocated parallel. to the shaft 14.

A sprocket wheel 17 is connected by a pawl and ratchet mechanism 18 to the shaft 14, and a sprocket wheel 19 is connected by a pawl and ratchet mechanism 20 to the shaft 16. The sprocket wheels 17 and 19 are engaged by sprocket chains 21.

There is a sprocket wheel 22 secured to the shaft 14, the sprocket wheel 22 being enga ed by a chain 23 cooperating with a sprocket wheel 24 on a shaft 25 located par: allel to the shaft 14 and journaled on the frame 1.

' On the shaft 25 there is fixed a gear wheel 26 meshing with a pinion 27 on a shaft 28 located parallelto the shaft 25, the shaft 28 being journaled on the frame 1. A gear wheel 29 is secured on the shaft 28 and meshes with a'pinion 30 secured to a shaft 31 journaled in the frame 1 and located parallel to the shaft 28. On the shaft 31 is secured a crank disc 32.

The numeral 33 marks an upwardly extended pitman. The lower end of the pitman 33 is pivoted at 34 to the crank disc 32. In the upper end of the pitman 33 is a pivot element 35 adapted to be mounted'in any one of a plurality of holes 36 disposed longitudinally of a walking beam 37, in one end of the walking beam.

Intermediate its ends, the walking beam 37 has a plurality of longitudinally ar ranged openings 38 adapted to receive aful crum member 39 which may be arranged in anyselected one of a plurality of vertically spaced openings 40 in a post 41 mounted on the frame 1.

The numeral 42 marks a pump rod engaged by the usual clamp 43 which is pivoted in that end of the walking beam 37 which is remote from the pitman 33. A bracket'44 is mounted on the post 41. The numeral 45 designates a bowed spring. One end of the spring 45 is secured to the bracket 44 and 95 the opposite end of the spring is secured to the walking beam 37, between the fulcrum post 41 and the pump rod42.

The shafts l4 and 16 may be rotated through the instrumentality of cranks 46 or ISO in any other suitable way, and a flywheel 47 is mounted on one end of the shaft 31.

In practical operation, the shafts 14 may be rotated through the instrumentality of the cranks 46, the pawl and ratchet mechanism l8 permitting the shaft 14 to rotate independently of the sprocket wheel 17 and the pawl and ratchet mechanism 20 permitting the shaft 16 to rotate independently of the sprocket wheel 19. .Vhen the shafts 14 and 16 rotate, as aforesaid, the flexible elements 9 will be reeled on the drums 12 and 11, and the weights 10 will be raised, to store up energy for the operation of the pumping mechanism, the flexible elements 9 running over the pulleys 8. Because the forks 6 are mounted to rotate, through the instrumentality of the stems 5, in the bearing blocks 4 carried by the upper ends 3 of the standards 2, the pulleys 8 may be caused to tilt toward the respective sides of the frame 1, the flexible elements 9 being permitted to be reeled on the drums 11 and 12 properly.

The weights 10, reacting on. the flexible elements 9, rotate the drums 11 and rotation is imparted to the shafts 14 and 16 from the drums. The pawl and ratchet mechanism 18 and 20 now connect the sprocket wheel. 19 with the shaft 16, and the sprocket wheel 17 with the shaft respectively, the shaft 14. being rotated from its drum 11, and additional impulse being imparted to the shaft 14, from the by way of the drum 12, the sprocket wheel 19, the sprocket chain 21, and the sprocket wheel 17.

From the shaft 14, rotation is imparted to the shaft 25 by way of the sprocket wheel 22., the sprocket chain 23, and the sprocket wheel 24. lVhen the shaft 25 is rotated, rotation is imparted to the gear wheel 26, and that gear wheel, me..hing with the pinion 27, rotates. the shaft 28. The gear wheel 29 on the shaft 28 meshes with the gear wheel 30 on the shaft 31 and rotates the shaft 31.

When the shaft 31 is rotated, rotation is imparted to the crank disc 32, and the pitman 33 imparts tilting movement to the walking beam 37 on its fulcrum 39. The pump rod 40 is moved up and down, and, thus, the function of the machine is accomplished.

On the downward movement of the right hand end of the walking beam 37 in Figure 1, the spring 45 is compressed, and on the upward movement of the pump rod 42, the spring 45 acts as an assisting spring, thereby aiding in the operation of the pump. For the sake of adjustment, the fulcrum member 39 may be mounted in any of the openings 40 in the posts 41, or in any of the openings 38 in the intermediate portion of the walking beam 37. Further adjustment is possible by placing the pivot element 35 shaft 16,

in any of the openings 36 of the walking beam 37.

The device is simple in construction, and will be found peculiarly efficient in operating a pump or equivalent mechanism. The operator, at his convenience can wind up the weights 10, and leave them to react to operate the pump in the manner hereinbefore described.

Having thus described the invention, what is claimed is 1. In a device of the class described, a frame, first shafts journaled on the frame, a third shaft journaled on the frame, a fourth shaftjounialed on the frame between the third shaft and one of the first shafts, a fifth shaft journaled on the frame between the fourth shaftand said one of the first shafts, all of the shafts being arranged in parallel relation, a chain and sprocket connection between the first shafts, a chain and sprocket connection between said one of the first shafts and the fifth shaft, intermeshing gears on the fifth and fourth shafts, intermeshing gears on the fourth and third shafts, drums on the first shafts, flexible elements wound about the drums, weights carried by the flexible elements, means for guiding the flexible elements intermediate their ones, a walking beam, means for fulcruming the walking beam intermediate its ends, a crank on the third shaft, a pitman pivoted to the crank and to one end of the walking beam, and means for connecting the opposite end of the walking beam with machinery to be driven.

2. In a device of the class described, a frame, a post on the frame, a walking frame fulcrumed intermediate its ends on the post, a bracket on the post, a U-shaped compression spring extended across the post and interposed between the bracket and one end of the walking beam, securing elements connecting the ends of the spring with the bracket and with the walking beam, means for connecting one, end of the walking beam with machinery to be driven, and mechanism for applying driving force to the opposite end of the walking beam.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

WILLIAM H. ZORN. 

